ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256

ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256

commit 5cfca59604e423f720297e30a9dc493eea623493 upstream.

The ASUS laptop X430UN with ALC256 can't detect the headset microphone
until ALC256_FIXUP_ASUS_MIC_NO_PRESENCE quirk applied.

Signed-off-by: Chris Chiu <chiu@endlessos.org>
Signed-off-by: Jian-Hong Pan <jhp@endlessos.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201207072755.16210-1-chiu@endlessos.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>